02-15-2021, 07:35 AM
Has anyone tried integrating a CO2 sensor into their robo-tank build? Something like this one driven over USB? https://www.co2meter.com/products/cozir-...0094613524
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CO2 Sensor
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02-15-2021, 09:18 AM
(02-15-2021, 07:35 AM)johnt_tally Wrote: Has anyone tried integrating a CO2 sensor into their robo-tank build? Something like this one driven over USB? https://www.co2meter.com/products/cozir-...0094613524 Nice sensor but I don't think it will work. As it comes it only works with Windows but does say contact them for Linux support. If it could work on a Pi and the code is in a python or c++ script a couple lines could be added to save the value to a text file so it could be imported in the pH module in reef-pi.
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02-15-2021, 11:13 AM
I saw this review from one of the purchasers: I got the CozIR with the USB dongle. It works well - I used it on Ubuntu and a Raspberry Pi for IAQ measurement. As a NOT CO2 measurement professional, I found it really amazing how sensitive it is to having a person near it (shouldn't be a surprise, I suppose). Also, I struggle a bit with calibration. Kudos to Co2meter.com for actually covering calibration in the manual, but I still struggle with outdoor calibration. Is my local area really 410 PPM? It reads more towards 500 with no cal. But I digress, because the sensor is very sensitive, pretty low noise, and the manual does discuss different cases of calibration, which to be honest, is more than I expected.
I took the Python sample code in AN127 and tweaked it a bit to make it easier to use as a library, including a bit of port discovery. https://gist.github.com/ErikBrewster/01b...5a8419d904
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02-15-2021, 02:28 PM
Oh there you go, I guess it does work haha. Were did you see that? I can't find it but sounds familiar now. I can contact who has it and see if he'll comment about it.
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02-15-2021, 02:36 PM
I found that statement on this page, second review: https://www.co2meter.com/products/cozir-...0094613524
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02-15-2021, 02:48 PM
Oh I thought it was on my site, guess I can't get him to comment. You'll have to decide based on that if you want to try it, looking at the script pm_25 or pm_10 should be the value it outputs so we can easily save them to text file to be imported in reef-pi. If you need help be the code I should be able to, just need to figure out which variable holds the data.
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